I have shot a lot of Wolf LPP and Tulammo SPP. Nary a hitch with 2.5k Wolff LPP.
I had 1 bad 1k batch out of 5 with the Tulammo SPP. Had about 4 duds in a revolver and 5 more duds between two of my Glocks.
I've only used 800 Wolf .223, and I've had 2 failures. Could be my rifle needs regular small rifle primers.
I should note I've never had a failure to ignite with US made primers. I've used about 40/60 US vs Russian, so far in my reloading career. I've switched back to domestic, since the Wolfs are getting harder to find, and the Tulammo aren't much cheaper than domestic. For 1k primers, I used to pay 15.50 for Wolf vs 30.00 for domestics. Now it's 20.00 vs 25.00. I'd rather have the peace of mind over half a cent savings per round. Not to mention that 9 failures = 9 bullets, powder, primers, and brass I lose, since I'm too lazy to pull a random dud.
If you're getting a really good deal, I wonder if it might be a suspect lot! 10k awesome primers that could be sprinkled with a few duds kinda spoils the score. It would take a long time to use up on plinking ammo.